Infiniti G37 Coupe. Manual — part 916
MWI-10
< FUNCTION DIAGNOSIS >
METER SYSTEM
METER SYSTEM : Component Parts Location
INFOID:0000000001606604
METER SYSTEM : Component Description
INFOID:0000000001606605
JPNIA0501ZZ
1.
Unified meter and A/C amp.
2.
BCM
3.
IPDM E/R
4.
Oil pressure switch
5.
Ambient sensor
6.
Combination meter
7.
Fuel level sensor unit and fuel pump
(main)
8.
Fuel level sensor unit (sub)
A.
Behind cluster lid C
B.
Oil pan (upper) RH side
C.
Condenser (front)
D.
Rear seat (lower right)
E.
Rear seat (lower left)
Unit
Description
Combination meter
Controls the following with the signals from the unified meter and A/C amp, switches and sensors.
• Speedometer
• Tachometer
• Water temperature gauge
• Fuel gauge
• Warning lamps
• Indicator lamps
• Information display
• Warning chime
MWI
METER SYSTEM
MWI-11
< FUNCTION DIAGNOSIS >
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SPEEDOMETER
SPEEDOMETER : System Diagram
INFOID:0000000001606606
SPEEDOMETER : System Description
INFOID:0000000001606607
• The ABS actuator and electric unit (control unit) converts the pulse signal provided by the wheel sensor to a
vehicle speed signal and transmits it to the unified meter and A/C amp. with CAN communication line.
• The unified meter and A/C amp. receives the vehicle speed signal from the ABS actuator and electric unit
(control unit) with CAN communication line and transmits it to the combination meter by means of communi-
cation line.
• The combination meter indicates the vehicle speed according to the vehicle speed signal received from the
unified meter and A/C amp. by means of communication line.
Unified meter and A/C amp.
• The combination meter receives the necessary information from various units via CAN communi-
cation line and transmits them to the unified meter and A/C amp. with the communication line that
connects both of them.
• Transmits the fuel gauge signal from the fuel gauge unit with the communication line that connects
the unified meter and A/C amp. and the combination meter.
• Reads the signals from the A/T device and paddle shifter and transmits them to TCM with CAN
communication line.
IPDM E/R
IPDM E/R reads the ON/OFF signals of the oil pressure switch and transmits the oil pressure switch
signal to the unified meter and A/C amp. via BCM with CAN communication line.
Fuel level sensor unit
Oil pressure switch
ECM
Transmits the following signals to the unified meter and A/C amp. with CAN communication line.
• Engine speed signal
• Engine coolant temperature signal
• Fuel consumption monitor signal
ABS actuator and electric unit
(control unit)
Transmits the vehicle speed signal to the unified meter and A/C amp. with CAN communication line.
BCM
• Transmits signals provided by various units to the unified meter and A/C amp. with CAN commu-
nication line.
• Transmits the security signal to the combination meter.
A/T device
Transmits the following signals to the unified meter and A/C amp.
• Manual mode signal
• Not manual mode signal
• Manual mode shift up signal
• Manual mode shift down signal
Paddle shifter
Transmits the paddle shifter up signal and paddle shifter down signal to the unified meter and A/C
amp.
TCM
Transmits shift position signal to the unified meter and A/C amp.
Meter control switch
Washer level switch
Transmits the washer level switch signal to the combination meter.
Brake fluid level switch
Transmits the brake fluid level switch signal to the combination meter.
Parking brake switch
Unit
Description
JSNIA0611GB
MWI-12
< FUNCTION DIAGNOSIS >
METER SYSTEM
SPEEDOMETER : Component Parts Location
INFOID:0000000001672037
SPEEDOMETER : Component Description
INFOID:0000000001606609
JPNIA0501ZZ
1.
Unified meter and A/C amp.
2.
BCM
3.
IPDM E/R
4.
Oil pressure switch
5.
Ambient sensor
6.
Combination meter
7.
Fuel level sensor unit and fuel pump
(main)
8.
Fuel level sensor unit (sub)
A.
Behind cluster lid C
B.
Oil pan (upper) RH side
C.
Condenser (front)
D.
Rear seat (lower right)
E.
Rear seat (lower left)
Unit
Description
Combination meter
Indicates the vehicle speed according to the vehicle speed signal received from the unified meter
and A/C amp. by means of communication line.
Unified meter and A/C amp.
Transmits the vehicle speed signal received from ABS actuator and electric unit (control unit) with
CAN communication line to the combination meter by means of communication line.
ABS actuator and electric unit
(control unit)
Transmits the vehicle speed signal to the unified meter and A/C amp. with CAN communication
line.
MWI
METER SYSTEM
MWI-13
< FUNCTION DIAGNOSIS >
C
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TACHOMETER
TACHOMETER : System Diagram
INFOID:0000000001606610
TACHOMETER : System Description
INFOID:0000000001606611
• ECM converts the pulse signal provided by the crankshaft position sensor to an engine speed signal and
transmits it to the unified meter and A/C amp. with CAN communication line.
• Unified meter and A/C amp. transmits engine speed signal to combination meter with communication line.
• The unified meter and A/C amp. receives the engine speed signal from ECM with CAN communication line
and transmits it to the combination meter by means of communication line.
• Combination meter converses engine speed signal to the angle signal, and commands to tachometer.
JSNIA0160GB
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